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Health Hazard Evaluations (HHEs)

Each month we will update this page to highlight newly released final reports and information on new and emerging hazards we are evaluating. Check back often to see what we are up to!

What's New

  • Evaluation of Diesel Exhaust Exposures at Multiple Fire Stations in a City Fire Department
    HHE Program investigators measured low levels of diesel exhaust and carbon monoxide in the living areas and apparatus bay at all three fire stations. We recommended having the apparatus bay exhaust fans operate automatically when bay doors are opened, moving turnout gear away from apparatus exhaust pipes, and removing exercise equipment from the apparatus bay. To read the full report go to .
  • 2015 Health Hazard Evaluation Program Annual Report
    The NIOSH Health Hazard Evaluation (HHE) Program is pleased to share its 2015 annual report. Our report includes summaries of projects that were interesting and other highlights of our year. We hope the report stimulates conversations about who the HHE Program is and how we make a difference for the health and safety of employees throughout the United States. A link to the annual report is available here:
  • Page last reviewed: June 11, 2014
  • Page last updated: April 26, 2017
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